/// <summary>
/// Draws a black line from point A to point B.
/// </summary>
/// <param name="pointA">The point A.</param>
/// <param name="pointB">The point B.</param>
/// <param name="width">The width.</param>
/// <param name="layerDepth">The layer depth.</param>
/// <param name="color">The color.</param>
public static void DrawLine(Vector2 pointA, Vector2 pointB, float width, float layerDepth, Color color)
{
// Check that all points are valid.
if (pointA == null || pointB == null ||
float.IsNaN(pointA.X) || float.IsNaN(pointA.Y) ||
float.IsNaN(pointB.X) || float.IsNaN(pointB.Y))
{
return;
}
drawLineDiff.X = pointA.X - pointB.X;
drawLineDiff.Y = pointA.Y - pointB.Y;
drawLineScale.X = drawLineDiff.Length() / 20f;
drawLineScale.Y = width * 0.05f;
drawLinePosition.X = (pointA.X + pointB.X) / 2f;
drawLinePosition.Y = (pointA.Y + pointB.Y) / 2f;
float angle = (RotationHelper.Vector2ToAngle(drawLineDiff.X, drawLineDiff.Y) + MathHelper.PiOver2) % MathHelper.TwoPi;
// If the slope is steeper than 1, we need to mirror the angle
// around the verticle due to the 0-2pi singularity of the Vector2ToAngle funciton.
if (pointA.X > pointB.X)
{
angle = MathHelper.TwoPi - angle;
}
float ratio = GetRatio();
GameWorld.spriteBatch.Draw(
TextureStatic.Get("blank"),
drawLinePosition * ratio,
null,
color,
angle,
TextureStatic.GetOrigin("blank"),
drawLineScale * ratio,
SpriteEffects.None,
GetLayerDepthScale(layerDepth));
}